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2
votes
1answer
46 views

Where to keep persistent services in MVVM architecture?

In an MVVM application I need to use some services that are persistent, e.g. network services like P2P and WCF where the main "engine" or server endpoint must remain up and running during the lifetime ...
1
vote
0answers
89 views

Using Singletons in JS with workers

I'm building a javascript application that does continuous drawing, but relies on asynchronous scripts in the background which also need to poll for events and write to "global variables". This got me ...
0
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0answers
31 views

Designing Document class for Doc Imaging - optional fields

I'm working on a project that processes many Documents. A Document CAN have a Cover Sheet (if the first page is one) A Document CAN have a Stub (if Document is large) It matters whether or not a ...
0
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0answers
272 views

Use a global variable, a singleton, or something else

Preface: I am working in PHP (Abandon hope all ye who enter here). Background: There exists a large set of global functions in PHP, a number of which are miscellaneous system calls, like sleep (and ...